Nkhani Zamalonda

Chithunzi cha HD11N Knife Switch imayimira gawo lofunika kwambiri pamagetsi amakono a photovoltaic (PV), opangidwa makamaka kuti agwire ntchito yotetezeka komanso yodalirika pakugwiritsa ntchito mphamvu zowonjezereka. Monga chida cholumikizira chodzipatulira, chosinthira mpenichi chimawonetsetsa kuti anthu amatha kudzipatula pomwe akutsatira zofunikira pakugawira kwa DC ndi AC pakuyika magetsi adzuwa. Umisiri wake umayang'ana kwambiri kulimba ndi chitetezo, ndikupangitsa kuti ikhale yoyenera pamasinthidwe osiyanasiyana a PV amakampani ndi malonda.

MCB Isolator Switch, makamaka mndandanda wa BYG1-125, ndi zinthu zofunika kwambiri zamakono zogawa mphamvu zamagetsi. Chopangidwa kuti chipereke kudzipatula kotetezeka komanso komveka bwino kwa dera, chipangizochi chimaphatikiza chitetezo cha miniature circuit breaker (MCB) ndi kuthekera koyera kolumikizana ndi chodzipatula. Monga malo ovuta kwambiri olamulira, amatha kuthetsa mphamvu zonse kumayendedwe akumunsi panthawi yokonza, kukonza kapena kuzimitsa mwadzidzidzi, motero kuonetsetsa chitetezo cha ogwira ntchito ndi zipangizo. Mamangidwe ake olimba komanso miyezo yolimba yamagetsi imapangitsa kuti ikhale yofunika kwambiri pazamalonda ndi mafakitale.

Mndandanda wa BYW1 ukuyimira kudumphadumpha kwakukulu muukadaulo woteteza magetsi. Zopangidwira ma gridi a AC 50Hz, chowombera chanzeru chapadziko lonse lapansi (ACB) chidavotera mpaka 690V ndipo chili ndi mphamvu yogwira mpaka 6300A. Monga mwala wapangodya wa kugawa magetsi otetezeka, imateteza modalirika zomangamanga m'mafakitale, malo ogulitsa, ndi malo akuluakulu kuti asawonongeke kwambiri.

Kuyika kwamagetsi kwamakono kumafuna njira zotetezedwa zophatikizika, ndipo mndandanda wa BY02L-63 umapereka chitetezo chofunikira. Izi Residual Current Circuit Breaker (RCBO) zimaphatikiza chitetezo chopitilira muyeso, chafupikitsa, komanso kutulutsa kwapadziko lapansi mkati mwa chipangizo chimodzi chophatikizika. Pokhala ndi mphamvu ya 3kA yothyoka, imateteza nyumba zogona, zamalonda, ndi mafakitale ku zoopsa za magetsi ndi moto wobwera chifukwa cha kuwonongeka kwa magetsi. Pokhala ndi chidwi ndi mafunde otsala owopsa (nthawi zambiri 30mA), imadula mabwalo nthawi yomweyo ngati kusalinganiza kowopseza moyo kumachitika, kupereka chitetezo chofunikira kwa ogwira ntchito.

Mndandanda wa BY08DC 1 + 2-12.5 ukuyimira kupita patsogolo kwakukulu mu chitetezo cha photovoltaic system. Chida ichi chapadera cha Dc Surge Protective Device (SPD) chimapereka chitetezo chofunikira cha T1 + T2 chomwe chimapangidwira mabokosi ophatikizira dzuwa ndi ma inverter. Pogwiritsa ntchito luso lapamwamba lamphamvu lazitsulo la oxide varistor (MOV), limapereka chitetezo champhamvu ku mphezi (10/350μs) ndi kusintha kwapakati (8/20μs). Ndi mphamvu zotulutsa kuchokera ku 20kA mpaka 40kA pamtengo, SPD iyi imawonetsetsa kuti zida zofunikira za DC zimakhalabe zotetezedwa ku mawotchi owonongeka amagetsi panthawi yonse yogwira ntchito.

Mndandanda wa BY04L-63 umayimira kupita patsogolo kofunikira pachitetezo chamagetsi, kuphatikiza ntchito zofunika zoteteza mu chipangizo chimodzi. Izi Residual Current Circuit Breaker (RCBO) zimapereka chitetezo chokwanira ku zoopsa zazikulu zitatu: mafunde opitilira muyeso, ozungulira pang'ono, komanso mafunde otsalira owopsa (kutsika kwapadziko). Zopangidwa kuti zikhale zodalirika, zimateteza bwino anthu onse ogwira ntchito ku magetsi komanso kuziyika ku zoopsa zamoto zomwe zimadza chifukwa cha kuwonongeka kwa magetsi kapena magetsi ochulukirapo, zomwe zimapangitsa kuti zikhale zofunikira pamagetsi amakono.